JPH0197276A - Antibacterial fiber product improved in discoloration - Google Patents

Abstract

PURPOSE: &?To obtain a durable antibacterial fiber product prevented from and improved in discoloration such as lowering in whiteness or yellowing by treating a fiber product by combinedly using an organosilicone having a quaternary ammonium salt with an amphoteric surfactant. CONSTITUTION: This antibacterial fiber product having washing durability while prevented from discoloration such as whiteness lowering or yellowing of a fluorescent stained material is obtained by treating a fiber product comprising natural, regenerated, semi-synthetic or synthetic fibers with an organosilicone having a quaternary ammonium base expressed by formula I (n) is 16-20}, then treating with a betaine-type amphoteric surfactant of formula II [R1 is methyl, an 8-20C higher alkyl (when R4 is H, R1 is an 8-20C higher alkyl); R2 and R3 are each a 1-10C alkyl or a polyoxyalkylene; R4 is H or an 8-22C higher alkyl (when R1 is an 8-22C higher alkyl, R4 is H)] and partially sequestering the quaternary ammonium cation.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an anti-indentation fiber MIWJ product, and more specifically, it improves discoloration such as deterioration of white skin and yellowing of fluorescent dyed products, and improves durability. The purpose of the present invention is to provide IJIH1 products with anti-seedling properties.

[Conventional technology and problems to be solved] Various types of microorganisms such as mold and staghorn seedlings live in the atmosphere, and they have a harmful effect on textile products and the human body. It goes without saying that the growth and reproduction of fungi attached to textile products, such as Efsterya products, especially socks, underwear, bed sheets, covers, etc., is harmful to human health. .

Conventionally, in order to solve such problems, methods of treatment with a halogenated phenyl compound, methods of treatment with I on a cationic surfactant containing a quaternary ammonium base, and methods of treatment with a quaternary ammonium base-containing cation surface active compound,
A method of treatment with a cationic polymer containing a quaternary ammonium base, a method of treatment with an organosilicone containing a quaternary ammonium base, etc. are known. However, these known methods also have various problems.

Halogenated phenyl compounds are toxic to the human body (carcinogenic), and compounds containing quaternary ammonium bases not only have problems with durability and texture, but also cause problems such as deterioration of white skin and yellowing of textile products. It has drawbacks such as discoloration.

The present inventors solve these conventional problems and provide a seedling-resistant fiber product that improves discoloration such as reduction of white bark and yellowing.

[Means for solving problems]

The present invention is a textile product treated with an organosilicone having a quaternary ammonium base represented by the following formula A, wherein the quaternary ammonium cation in the organosilicone is treated with an amphoteric surfactant represented by the following formula B. It is characterized by being at least partially closed.

A formula B formula n 2 R< In the formula, R is a methyl group or a C8-C2° higher alkyl!
(When R is a hydrogen group, it represents a C, to C2° higher alkyl group).

R2 and R1 represent a C1-C3° alkyl group or a polyoxyalkylene group.

R1 is a hydrogen group or a C1-C2° higher alkyl group (Rn
When is a higher alkyl group of C, to C2°, it represents a hydrogen group.

The textile products according to the present invention have the excellent antibacterial properties and washing durability of organosilicone containing quaternary ammonium bases, and have features such as being able to prevent discoloration such as deterioration of white skin and yellowing due to treatment. .

The organosilicone having a quaternary ammonium base used in the present invention is -722 formula (n2h
si R3-N(j)(Rn)n(Rs)s-nXe
(In the formula, R2 may be an alkoxy group, a halogen atom, an acyl group, and one may be a hydroxyl group.

R, is a divalent hydrocarbon group having 20 or less carbon atoms which may have a T1 substituent, or a divalent hydrocarbon group having 20 or less carbon atoms containing an oxygen atom or a nitrogen atom; You can.

R4 is a lower alkyl group, and R3 is an alkyl group having 1 to 20 carbon atoms, an alkenyl group, a cycloaliphatic hydrocarbon group, an aromatic group, or an alkaryl group.

n is an integer of 1 to 3, X is an anion, for example, a salt atom,
Bromine atoms, etc. ) is exemplified.

(In the formula, n is the M number of 16N20) is exemplified.

The amount of the above organosilicon adhered to the fiber is 1i in terms of solid content.
The amount is usually 0.1 to 5% by weight, preferably 0.5 to 2% by weight per liter.

Any treatment method may be used, such as submerged treatment, pad/dry treatment, spray/dry treatment, pad/steam treatment, etc.
However, submerged exhaustion treatment is particularly advantageous.

The processing conditions are usually a bath ratio of 1:3 to 100 and a temperature of room temperature to 100.
Exhaustion treatment is preferably carried out at 35°C to 80°C for 20 minutes or more.

In the present invention, it is essential to perform the treatment in combination with the organosilicone represented by formula A and the amphoteric surfactant represented by formula B.

The amphoteric surfactant used is usually called a betaine type amphoteric surfactant, such as N-octadecyl oxymethyl-N.N-dimethylbetaine, N-stearyl-N-N-dimethylbetaine, C-myristylbetaine, N-stearyl-N-N-polyoxyethylenebetaine, etc. are exemplified, and they may be used alone or in combination of two or more kinds.

The amount of the amphoteric surfactant represented by formula B to be used is such that a portion, preferably all, of the cationic groups possessed by the organosilicone represented by formula A are blocked. Any treatment method may be used, such as a dipping method or a pad method.

Further, the pH of the treatment liquid containing the amphoteric surfactant is in the range of 3 to 11, preferably on the neutral to acidic side.

In addition, in the present invention, the organosilicone represented by formula A and the amphoteric surfactant represented by formula B are combined! The i order is arbitrary, and excellent effects can be obtained even when used in the same bath in the dipping method, pad method, etc.

Also, a method of treating organosilicone represented by formula A in a pre-process (optional such as dipping method, pad method, etc.) and treating an amphoteric surfactant represented by formula B in a post-process (optional such as dipping method, hat method, etc.) , or vice versa, excellent effects can be obtained.

The fibers to which the present invention is applied include, but are not limited to, natural fibers such as cotton, hemp, wool, and silk, recycled fibers such as viscose rayon, semi-synthetic fibers such as acetate, polyamide, and acrylic fibers. , single or mixed synthetic fibers such as polyester and polyolefin, composite fibers,
Examples include threads, knitted fabrics, nonwoven fabrics, and sewn products made of these fibers. It may also be a composite product of fibers and other materials.

〔Effect of the invention 〕

In the present invention, by treating with a combination of an organosilicone represented by formula A and an amphoteric surfactant represented by formula B, it is possible to impart excellent antibacterial properties and obtain washing durability of the effect, Discoloration such as deterioration of white skin and yellowing caused by treating organosilicone represented by formula A can also be prevented by treatment in combination with an amphoteric surfactant represented by formula B.

[Example 1] A cotton knitted fabric that had been scoured, bleached, and fluorescently dyed was immersed in a 3% amf aqueous organosilicone solution containing a quaternary ammonium base represented by the following formula, heated to 60°C, and treated for 20 minutes. After that, 3% of N-stearyl-N/N polyoxyethylene (15 mol) betaine (manufactured by Takamatsu Yushi Co., Ltd.) was added.
After addition of owf, the bath was treated at pH 6.5 for 20 minutes, dehydrated, dried, and subjected to antibacterial treatment. In addition, as a comparative product, a sample to which betaine was not added was also prepared.

These treated fabrics were tested for white skin reduction and antibacterial durability due to heat treatment.

The heat treatment was carried out using a dry heat test machine manufactured by Suga Test Co., Ltd.
Dry heat treatment was performed at 60°C for 2 minutes, and the degree of discoloration of the heated portion was evaluated.

Durability was evaluated by testing the antibacterial properties of treated samples and samples after 50 home washings using the mold resistance test method of JIS-Z 2911-1981.

The results are shown in Table 1. The antibacterial treated fabric without the addition of betaine has a greater reduction in white skin compared to the fluorescently dyed fabric (untreated fabric), but the antibacterial treated fabric with betaine added has a greater decrease in white skin compared to the untreated fabric. No decrease in white skin was observed.

[Example 2] Scoured, bleached, and fluorescently dyed wool serge was immersed in the aqueous solution of 3% OWF organosilicone used in Example 1, heated to 60°C, treated for 20 minutes, dehydrated, and dried. Then, the betaine 3% water-soluble/I! (bath pH 6.5), treated at room temperature for 15 minutes, dehydrated and dried to produce an antibacterial treated cloth.

The antibacterial treated fabric that was not treated with betaine showed a decrease in white skin when subjected to the same dry heat treatment at 160°C for 2 minutes as in Example 1, but the antibacterial fabric treated with betaine showed almost no decrease in white skin. Ta.

[Example 3] Scoured, bleached, and fluorescently dyed cotton knitted fabric was treated with 2% quaternary ammonium base-containing organosilicone represented by the following formula.
owf aqueous solution, heated to 50°C, treated for 15 minutes, dehydrated, dried, and then padded with an aqueous solution of 1.5 g/l of N-stearyl-N-N-dimethylbetaine. After drying, an antibacterial treated cloth was obtained. In addition, betaine 1.
The pH of the 5 g/V aqueous solution bath was adjusted to 5.7.9, with acetic acid on the acidic side and caustic soda on the alkaline side. ), processed.

Table 2 shows the evaluation of white peel reduction by dry heat treatment of processed fabrics at 160°C for 2 minutes.

It was observed that the If of the treatment bath when performing betaine treatment with respect to the ability of P I-1 to prevent deterioration of white skin was small.

Table 2 -chi0

Claims (1)

[Scope of Claims] A textile product treated with an organosilicone having a quaternary ammonium base represented by the following formula A, wherein the quaternary ammonium cation in the organosilicone is an amphoteric product represented by the following formula B. An antibacterial textile product with improved discoloration property characterized by being at least partially blocked by a surfactant. Formula A ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ Formula B ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ In the formula, R_1 is a methyl group or a higher alkyl group of C_3 to C_2_0 (if R_4 is a hydrogen group, it is C_3 to C_2_0
represents a higher alkyl group. ) is shown. R_2 and R_3 represent an alkyl group or a polyoxyalkylene group of C_1 to C_1_0. R_4 is hydrogen group or C
Higher alkyl group of _3 to C_2_0 (R_1 is C_3 to
In the case of C_2_0 higher alkyl group, it represents a hydrogen group. )
shows.